This page explains how Chiafu Yeh (USATT# 277124)'s rating went from 1976 to 1939 at the 2024 Best of the West Open & Giant Round Robin held on 24 Feb 2024 - 25 Feb 2024. The links below take you to pages that describe various aspects of the rating processor.

The rating processor goes through 4 passes in order. The links take you to pages that provide detailed explanations of the calculations during each of the 4 passes.